RLEF and BRLA address environmental challenges on Cow Island The RLEF and the BRLA share a commitment to the appreciation, understanding, preservation, and safe enjoyment of the Big Rideau Lake. BRLA programs, specifically Cow Island Day Camp, instill a passion for our lake in our youth and help ensure sound stewardship into the future; an educated, strong, committed community is…
PRESS RELEASE FOR IMMEDIATE RELEASE Rideau Lakes Environmental Foundation Announces 2026 Research Grants Four projects to study the impact of docks, long-term lake change, microplastics, and road salt in the Rideau Lake Portland, ON — March 2026 — The Rideau Lakes Environmental Foundation (RLEF), a registered Canadian charity, today announced the recipients of its 2026 Small Grants Program. Four research…
A new article in Aquatic Conservation from the Fish Ecology and Conservation Physiology Laboratory at Carleton University reports on research funded by the RLEF (Dusevic et al., 2024). Fish sanctuaries on Big Rideau Lake and two neighbouring lakes benefit a much wider range of wildlife than they were designed to protect. …
RLEF has been supporting research on lake fish populations, including that Dr. David Philipp and Dr. Steve Cooke for some time. Studies have shown that the Bass populations in Big and Upper Rideau Lakes was declining over time due to preseason catch and release fishing taking male bass away from their nests. Fisheries Conservation Foundation (FCF) is working on a…
The Big Rideau Lake Association (BRLA) is working with the Rideau Lakes Environmental Foundation (RLEF) and the Upper Rideau Lake Association (URLA) to develop a conservation plan.
Here is an update on getting a larger, new Bass Spawning Sanctuary Study up and running in the expanded group of bass lakes that make up our Coalition for Innovative Fisheries Conservation (CIFC). That all said, it became very clear that the study as we envision it, cannot get started until spring of 2027. Even if we could have had…
From Dr. David Philipp, October 2025 Largemouth and smallmouth bass (LMB and SMB) have a complex life history in which males of both species are entirely responsible for building nests, courting females for spawning, and then once fertilized eggs are in their nests, solely providing extended parental care of the resulting offspring for another 4-6 weeks post-fertilization (Ridgeway 1988). That…
RLEF activities are featured in an article in the Westport Review-Mirror, September 18, 2025…
Restoring degraded aquatic habitat is one of the most appealing tools in freshwater conservation.
A study on Big Rideau Lake, published in 2024, tested one such intervention for smallmouth bass spawning habitat — and the results illustrate how difficult translating that logic into practice can be.
With the support of our community, including the Rideau Lakes Environmental Foundation, the Rideau Waterways Land Trust has completed the acquisition of a significant portion of Long Island in Big Rideau Lake. The generous donation of 33 acres of land on Island 186 had ensured the future protection of one of our lake’s special places. This land supports many species…
There’s a new “live” report up on Facebook from researchers at Carleton University, reporting on survey of showing a bass on a nest, and talking about ideal temperatures for bass spawning from May 2025. Hook wounds are a real indication of angling pressures.
Layer by layer, sediment cores reveal centuries of biological and chemical change in lake-bottom sediment. This study looked back more than 200 years — far enough to capture the disruption of canal construction beginning in 1828 — but the most striking finding concerns the past 25 to 30 years. Despite significant improvements in phosphorus levels since the 1970s, the lakes…